JP3748613B2

JP3748613B2 - Storage part lifting support device

Info

Publication number: JP3748613B2
Application number: JP04970096A
Authority: JP
Inventors: 聡谷; 元春村上
Original assignee: Panasonic Corp; Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Corp; Panasonic Holdings Corp
Priority date: 1996-03-07
Filing date: 1996-03-07
Publication date: 2006-02-22
Anticipated expiration: 2016-03-07
Also published as: TW409526U; KR19990008368A; KR100536412B1; CN1178452A; CN1124097C; JPH09238756A; WO1997032505A1

Description

【０００１】
【発明の属する技術分野】
本発明は、厨房等において各種の物を収納する収納装置に関し、特に収納キャビネットの内外で収納部を昇降させるようにした昇降式収納装置における収納部の昇降支持装置に関するものである。
【０００２】
【従来の技術】
従来のこの種の収納装置における収納部昇降支持装置としては、例えば特開平７−１４８０３７号公報に開示されたもの等が知られている。その収納部昇降支持装置を図１４を参照して説明すると、収納キャビネット６０（図１５参照）の両側内面に取付基台６１を固定し、これら取付基台６１にてそれぞれ平行リンク６２を回動自在に枢支し、各平行リンク６２の遊端部を連結した装着板６３に収納部（図示せず）の両側面を取付けて構成されている。取付基台６１にはその裏面側に間隔をあけて取付板６４を固着し、平行リンク６２の一方のリンク６５ａと固定した枢支軸６６を取付基台６１と取付板６４を貫通させてそれらの軸受部にて回転自在に支持し、取付基台６１と取付板６４の間に枢支軸６６に固定した大歯車６７を配設している。取付板６４の裏面側に突出した枢支軸６６の端部外周に蔓巻バネ６８を配置し、その一端６８ａを取付板６４に固定した係止部材６９に係合させ、その他端６８ｂは一方のリンク６５ａと連動して大歯車６７が回転したときに大歯車６７に突設した押動ピン７０と係合するように構成されている。なお、収納部が収納キャビネット６０内に収容されている上昇端から適当角度の回動範囲は蔓巻バネ６８の他端６８ｂと押動ピン７０が係合しない遊び範囲となるようにして収納部を軽く動かせるようにしている。また、取付板６４の裏面にロータリーダンパ７１が取付けられ、その軸に固定したピニオン７２を大歯車６７に噛合させ、大歯車６７が一方のリンク６５ａと連動して回転したとき増速してロータリーダンパ７１を回転させるように構成されている。
【０００３】
また、両側の平行リンク６２の他方のリンク６５ｂの枢支軸７３は取付基台６１の軸受部にて回転自在に支持されるとともに取付基台６１表面から突出され、その突出部に連結軸７４の両端部が外嵌されてそれら貫通する連結ピン７５又はねじにて連結固定され、両側の平行リンク６２、６２が同期して回動するようにしている。
【０００４】
また、収納部をその昇降端位置で停止させる手段として、図１５に示すように、取付基台６５の表面に一方のリンク６５ａの側縁が両回動端で係合するようにストッパ７６を固定したものが知られている。そのストッパ７６は、本体金具７７の両側に形成した起立片７８に衝撃吸収体７９を一体固着し、さらに衝撃吸収体７９の表面に押圧板８０を一体固着してリンク６５ａ側縁の衝突による損傷を防止するように構成されている。
【０００５】
【発明が解決しようとする課題】
しかしながら、上記従来の収納部昇降支持装置の構成では、ロータリーダンパ７１にて効果的に緩衝機能を発揮させるために、大歯車６７とピニオン７２にてリンク６５ａの回動を増速させているので、構成が複雑でコスト高になるという問題があった。また、ロータリーダンパ７１は主としてオイルの粘性抵抗を利用して緩衝するものであるため、温度の影響を受け易く、雰囲気温度によって動作特性に大きなばらつきを生じてしまうという問題があった。
【０００６】
また、収納部の荷重を軽減するための付勢手段として枢支軸６６の外周に配設した蔓巻バネ６８を用いているが、収納部の荷重による大きなモーメントを十分に支持するのに必要な捩じりモーメントを比較的小さな巻径で得るには太い線径が必要になって製造設備が大掛かりになるとともにコスト高になり、さらに収納部の下降に伴うモーメントの変化に的確に対応する捩じりモーメントを得ることは困難であり、十分に緩衝機能を発揮できないという問題があった。
【０００７】
また、上記ストッパ７６の構成では、例えばインモールド成形等にて押圧板８０を一体的に固着した衝撃吸収体７９を製造し、この衝撃吸収体７９を本体金具７７に接着する等、多くの複雑な工程が必要であるためにコスト高になるとともに、接着等が剥がれる恐れがあって昇降端での停止時の緩衝機能維持に対する信頼性が低いという問題があった。
【０００８】
本発明は、上記従来の問題点に鑑み、安価に構成できかつ十分な緩衝効果が安定して得られる収納部昇降支持装置を提供することを目的としている。
【０００９】
【課題を解決するための手段】
本発明の収納部昇降支持装置は、遊端部に収納部を連結した平行リンクを取付筐体にて枢支し、平行リンクの一方のリンクを枢支するとともに連動して回転する枢支軸を取付筐体内に突出させて取付筐体内で連動回転板を固定し、連動回転板と取付筐体との間又は連動回転板と収納キャビネット内側面との間に、収納部下降時の平行リンクの回動に伴う連動回転板の回動速度を抑制するように直動式ダンパーと引張又は圧縮バネ体を配設した構成としている。
【００１０】
このように、オリフィスの流通抵抗により緩衝作用を得る直動式ダンパーとバネ体を、枢支軸に連結した連動回転板と取付筐体又は収納キャビネット内側面との間に介装しているので、ダンパーの動作特性の温度による影響が小さく、雰囲気温度が変化しても安定した動作特性が得られ、またバネ体として引張又は圧縮バネを用いることができるので大きなバネ荷重を容易に得ることができるとともに連動回転板との組合せにより収納部の下降運動に伴う回動モーメントの変化に対応するモーメントを容易に得ることができて最適な緩衝特性を実現することができ、さらに取付筐体内に配設した連動回転板に直動式ダンパーとバネ体を連結しているので、取付筐体外のリンクに対してこれら直動式ダンパーとバネ体を連結するように構成した場合に比して、取付筐体からリンクに対する連結ピンが突出せず、異物を噛み込んで動作不良を起こす恐れがなく、また外観もすっきりして見栄えが良く、さらにリンクと連動回転板の相対角度は任意に設定できるので、直動式ダンパーとバネ体のレイアウトを任意に設定でき、取付筐体の設計自由度が高くなる。
【００１１】
なお、バネ体を直動式ダンパー内に内蔵させたり、直動式ダンパーの出退軸の外周に巻回配置して、直動式ダンパーと一体的に組み合わせても良く、そうすると筐体サイズを小さくできるとともに、バネ体の引っかけ構造が不要となって部品点数を削減できる等の利点がある。
【００１２】
また、一方のリンクと枢支軸の連結部において、枢支軸に平行係合面を有する異径部を設け、一方のリンクに異径部が一定角度範囲で相対回転可能に嵌入係合するように直径方向両側にハ字状に広がる係合孔を形成すると、収納部が上昇端に位置する状態で上記一定角度範囲でダンパー機能を全く受けずに回動させることができ、ダンパー機能を必要としない上昇端近傍で収納部を軽く動かすことができる。また、枢支軸に異径部を加工し、リンクに係合孔を加工するだけでよく、係合部材と被係合部材等の部品を必要としないので、安価に構成することができる。
【００１３】
また、取付筐体を、収納キャビネットの内側面に取付けた取付基板に装着するように構成し、取付筐体の枢支軸貫通部に第１の軸受を嵌合し、取付基板の枢支軸の軸端に対応する位置に第２の軸受を嵌合することにより、枢支軸を第１と第２軸受にてその両端部を回転自在に支持することができ、十分な強度が得られて安定した動作を長期にわたって確保でき、しかも取付基板に軸受を設けたので、取付筐体側に支持板を固着して取付筐体と支持板にそれぞれ設けた軸受で枢支軸を両端支持する場合に比して取付筐体の構成が簡単になり、安価に構成することができる。
【００１４】
また、平行リンクの一方のリンクは枢支軸からさらに延長した延長部を備え、収納部の昇降端で延長部が係合するストッパを取付筐体に配設すると、収納部を昇降端で確実に停止させることができる。また、ストッパを、取付筐体に固定される固定本体と、固定本体の外周に嵌合される環状の弾性体と、固定本体及び弾性体の外面をほぼ覆うとともに固定本体に一方のリンクの回動方向に移動可能に保持されたカバー板にて構成すると、固定本体、弾性体及びカバー板はそれぞれ単純な部品であるため、生産性良く安価に製造することができてコスト低下を図れ、かつ長期にわたって安定した作用を得ることができる。
【００１５】
【発明の実施の形態】
以下、本発明の一実施形態について図１〜図１０を参照して説明する。
【００１６】
図１において、１はキッチン等の壁面上部に設置された収納キャビネット、２はこの収納キャビネット１に、その内部に収容した状態（一点鎖線で示す）と外部の前方下部に引き出した状態（仮想線で示す）との間で昇降可能に装着された収納部である。収納部２は、例えば両側板と複数段の網かごと前端下部のハンドルを備えた収納ラック等にて構成されている。収納キャビネット１の両側内面には平行リンク４を有する昇降支持装置３が配設され、これら昇降支持装置３にて収納部２が上記のように昇降可能に支持されている。なお、収納部２は、実線で示すように平行リンク４が直立した位置で最も高く位置するが、収納部２を安定した状態で収容するために、その位置からさらに略１０度程度後側に回動した一点鎖線で示す状態で収納キャビネット１に完全に収容されるように構成してあり、本明細書ではこの位置を収納部２の上昇端と規定し、仮想線で示す状態を下降端と規定する。
【００１７】
昇降支持装置３は、図２に示すように、平行リンク４を構成する前側リンク５ａと後側リンク５ｂの各々の基端部を取付筐体６にて枢支しており、それらリンク５ａ、５ｂの遊端部が収納部２の両側面に固定した連結板７に枢着されている。両昇降支持装置３、３の前側リンク５ａの基端部は連動連結軸８にて互いに結合され、両昇降支持装置３、３の平行リンク４、４が互いに同期して回動するように構成されている。また、後側リンク５ｂには基端部からさらに延長した延長部９が形成されている。取付筐体６の外側面には、収納部２の上昇端で後側リンク５ｂの基端部近傍の後側縁が係合し、収納部２の下降端で延長部９の後側縁が係合するように全体形状が略三角形状のストッパ１０が固定され、収納部２の昇降端をこのストッパ１０にて規制するように構成されている。
【００１８】
後側リンク５ｂを枢支するとともにこの後側リンク５ｂと連動して回転する枢支軸１１が取付筐体６内に突出され、図３に示すように、取付筐体６内でこの枢支軸１１に連動回転板１２が固着されている。連動回転板１２の一端部１２ａに取付けたバネ掛け１３と取付筐体６の上部前端に設けたバネ掛け突起１４との間に引張バネ１５が介装され、連動回転板１２の他端部１２ｂに設けた支軸ピン１６と取付筐体６の上部後端部に設けた支軸ピン１７との間に直動式ダンパ１８が介装されている。前側リンク５ａの基端部には枢支ピン１９が固定され、この枢支ピン１９が取付筐体６に設けられた軸受部２０にて回転自在に支持されている。
【００１９】
取付筐体６は、図４に示すように、収納キャビネット１の内側面側が開口された浅い方形箱体から成り、収納キャビネット１の内側面に取付けられる取付基板２１に装着するように構成されている。取付基板２１はその前側縁と後側縁から結合片２２ａ、２２ｂが立ち上げ形成され、取付筐体６の前側壁と後側壁の内面に重合するように構成されている。前側の結合片２２ｂの端縁からは取付片２３が後側に向けて折曲形成されている。一方、取付筐体６の内側上端部には、前端と後端に取付筐体６の前側壁と後側壁に重合する結合板部２５ａ、２５ｂを折曲形成されたコ字状の支板２４が固定され、この支板２４の下端が取付基板２１の上端に当接して上下方向に支持されるように構成されている。取付基板２１の結合片２２ａ、２２ｂの上端にはその先端部分に突出部２６が形成され、支板２４の結合板部２５ａ、２５ｂの下端の先端部分には突出部２６よりも幅の広い凹部２７が形成されており、図５に示すように、取付筐体６を取付基板２１の結合片２２ａ、２２ｂの先端部に嵌合させて矢印ａの如く降ろし、支板２４の結合板部２５ａ、２５ｂの下端を結合片２２ａ、２２ｂの上端に当接させて支持し、その後矢印ｂの如く取付筐体６を押し込むことにより、取付基板２１に取付筐体６を装着するように構成されている。
【００２０】
支板２４の結合板部２２ａには、一部が切り起こされてバネ掛け突起１４が形成されている。また、取付筐体６と支板２１の上端後端部に支軸ピン１７の両端部を嵌入係合させて取付ける取付穴２６ａ、２６ｂが形成されている。また、図６、図７にも示すように、取付筐体６の下部の前後方向略中央部には、枢支軸１１を回転自在に支持する軸受２７が嵌合固定され、取付基板２１の対応した位置には、有底軸受２８がその裏面側から装着して嵌合固定されている。
【００２１】
図６、図７において、平行リンク５の後側リンク５ｂを枢支する枢支軸１１には、取付筐体６から突出した先端部に互いに平行な係合面を有する異径部２９が形成され、後側リンク５ｂの枢支軸１１との連結部には異径部２９が一定角度範囲（±略１０度の範囲）で相対回転可能に嵌入係合するように直径方向両側にハ字状に広がる係合孔３０が形成されている。この異径部２９と係合孔３０の回転方向の位置は、後側リンク５ｂが直立状態から±略１０度の範囲で枢支軸１１及び連動回転板１２に対して連動せずにフリーに回動できるように設定され、収納部２が収納キャビネット１内に完全に収容された上昇端から略２０度引き出す間は引張バネ１５も直動式ダンパ１８も作用せず、その結果収納部２を軽く引き出すことができるように構成されている。
【００２２】
そして、枢支軸１１を取付筐体６の内側から軸受２７に挿通し、軸受２７から外部に突出した異径部２９に後側リンク５ｂの係合孔３０を嵌合させ、座金３１、バネ座金３２を介して取付ねじ３３を枢支軸１１の軸端ねじ穴３４に螺合することにより、後側リンク５ｂと連動回転板１２が固定された枢支軸１１とが取付筐体６に組み付けられている。この取付筐体６を上記のように取付基板２１に対して上方から降ろして位置決め支持した状態で収納キャビネット１の内側面に向けて押し込むことにより、枢支軸１１の先端部が取付基板２１に装着した有底軸受２８に嵌入し、枢支軸１１が軸受２７と有底軸受２８にて両端支持される。
【００２３】
３５は直動式ダンパ１８の基端部１８ａと連動回転板１２との間隔を保持するスペーサ、３６は座金、３７は抜け止め用スナップリングである。３８ａ、３８ｂは直動式ダンパ１８の先端部１８ｂの位置決め用スペーサである。３９は連動回転板１２の一端部１２ａに突設されたバネ掛け１３の取付ピンである。
【００２４】
ストッパ１０は、図８、図９に示すように、取付筐体６に固定される略三角形状の固定本体４０と、固定本体４０の外周に嵌合されるブチルゴムなどの環状の弾性体４１と、固定本体４０及び弾性体４１の上面と、後側リンク５ｂと延長部９の側縁が係合する両側面とをほぼ覆う断面形状コ字状のカバー板４２にて構成されている。固定本体４０の上面には、カバー板４２の板厚よりも若干高い複数の取付ボス４３が突出され、この取付ボス４３の部分に取付穴４４が貫通形成され、カバー板４２にはこの取付ボス４３が嵌入係合する長孔４５が形成されている。長孔４５はリンク５ｂの衝突による弾性体４１の圧縮方向に長い円弧状に形成されている。固定本体４０の下面からは複数の支承突起４６が突設され、取付筐体６に穿孔した受穴４７に嵌入係合させて固定本体４０に加わった荷重を円滑に取付筐体６に伝達するように構成されている。４８は取付ボルトで、バネ座金４９、座金５０を介して取付穴４４に挿通して取付筐体６に螺合させ、固定本体４０を取付筐体６に固定するとともに、座金５０にてカバー板４２の離脱を防止している。図９において、５１は取付筐体６の強度を保持するために裏面に固着した補強板である。
【００２５】
以上の構成の収納部昇降支持装置において、収納部２を収納キャビネット１内からその前方下部に引き出す場合、前端下端部のハンドル（図示せず）を手前に引くと、上記のように上昇端から略２０度の範囲では引張バネ１５も直動式ダンパ１８も作動しないように構成されているので、収納部２を軽く引き出すことができ、その後平行リンク４が前方に向けて回動するのに伴って収納部２はその自重による回動モーメントにより加速度的に下降し始めるが、その回動モーメントを相殺するように連動回転板１２と引張バネ１５による逆向きの回動モーメントが作用し、さらに直動式ダンパ１８によってその回動速度が抑制されるため、収納部２はゆっくりと下降端まで下降する。下降端になると、リンク５ｂの延長部９の側縁がストッパ１０に衝突して平行リンク４の回動が停止し、収納部２はその位置で停止・支持される。また、その衝突時の衝撃はカバー板４２を介して弾性体４１にて緩衝されるので、過大な衝撃荷重は吸収される。
【００２６】
この収納部２の下降に際して、オリフィスの流通抵抗により緩衝作用を得る直動式ダンパー１８と引張バネ１５と枢支軸１１に連結した連動回転板１２を組み合わせて用いているので、ダンパの動作特性の温度による影響が小さく、雰囲気温度が変化しても安定した動作特性が得られ、また引張バネ１５は大きなバネ荷重を容易に得ることができるとともに連動回転板１２との組合せにより収納部２の下降運動に伴う回動モーメントの変化に対応するモーメントを容易に得ることができて最適な緩衝特性を実現することができる。
【００２７】
一方、収納部２を上昇させて収納キャビネット１内に収容する場合にも、収納部２の荷重による回転モーメントが引張バネ１５の付勢力により相殺され、かつ直動式ダンパー１８はワンウェイ機構により上昇時の抵抗は殆どなくなるので、比較的軽く上昇させて収容することができる。上昇端においてもリンク５ｂの側縁がストッパ１０に衝突して同様に緩衝停止され、その位置で支持される。
【００２８】
そして、本実施形態の構成によれば、取付筐体６内に連動回転板１２と引張バネ１５と直動式ダンパー１８を配設しているので、リンク５ｂと連動回転板１２の相対角度は、図示例のようにほぼ平行に配設したものに限定されるものではなく、例えば図１０に示すように、リンク５ｂに対して連動回転板１２を適当に傾斜させて配設することによって、取付筐体６の高さ寸法をコンパクトにすることもでき、引張バネ１５と直動式ダンパー１８のレイアウト及び取付筐体６の設計自由度が高くなる。
【００２９】
また、上記のようにリンク５ｂと枢支軸１１との間に適当な角度範囲の遊びを設けるのに、枢支軸１１に異径部２９を加工し、リンク５ｂに係合孔３０を加工した構成とすることにより、枢支軸１１に係合部材を設け、リンク５ｂに被係合部材を固着するような構成に比して部品点数が少なくて済み、安価に構成することができる。
【００３０】
また、枢支軸１１を取付筐体６に装着した軸受２８と取付基板２１に装着した有底軸受２８で両端支持するようにしているので、十分な支持強度が得られて安定した動作が長期にわたって確保され、しかも取付基板２１側に有底軸受２８を装着したことにより、取付筐体６側に有底軸受２８を装着するための別の支持板を設ける必要がなく、取付筐体６の構成が簡単になり、安価に構成することができる。
【００３１】
また、上記ストッパ１０を固定本体４０とその外周に嵌合させた環状の弾性体４１とそれらの外面を覆いかつリンク５ｂの回動方向に移動可能に保持したカバー板４２にて構成しているため、これら各部品が単純な部品となって生産性良く安価に製造することができてコストが低下し、かつ接着していないために衝撃を受けても剥がれたり恐れがなく、長期にわたって安定した作用を得ることができる。
【００３２】
次に、本発明の他の実施形態の収納部昇降支持装置を図１１を参照して説明する。なお、上記実施形態と同一の構成要素については同一参照符号を付して説明を省略し、相違点のみを説明する。
【００３３】
上記実施形態では引張バネ１５を用いて直動式ダンパー１８とは別々に配置したが、本実施形態では圧縮バネ５２を用い、直動式ダンパー１８の本体内に内蔵させている。それに伴って、バネ体の配置空間を確保する必要が無くなるので取付筐体６のサイズを小さくすることができ、特に図示の如く前部の上部をカットした形状にするとリンク５ａ、５ｂの回動時に取付筐体６と擦れる恐れが少なくなり、機能上も見栄えの上でも好ましい。また、バネ体の引掛け構造が不要となるので、部品点数を削減することができる。さらに、圧縮バネ５２を直動式ダンパー１８の本体内に配置することにより、バネに対する錆止め処理が不要となってコスト低下を図ることができるとともに、圧縮バネ５２の体積分直動式ダンパー１８のオイル量も少なくすることができる。
【００３４】
なお、図示は省略しているが、バネ体のバネ荷重をさらに大きくしたいときには、さらに直動式ダンパー１８の本体と先端部１８ｂとの間の出退軸の外周にも圧縮バネを巻回配置してもよい。
【００３５】
次に、本発明のさらに別の実施形態の収納部昇降支持装置を図１２、図１３を参照して説明する。なお、上記実施形態と同一の構成要素については同一参照符号を付して説明を省略し、相違点のみを説明する。
【００３６】
本実施形態では、図１２に示すように、圧縮バネ５２を内蔵した直動式ダンパー１８の先端部１８ｂを取付筐体６の上壁を貫通させて外部に突出させ、収納キャビネット１の内側面に取付けた受金具５３に係合させて連結している。受金具５３は、図１３に示すように、取付板５４の上縁中央部から倒立Ｌ字状に支片５４ａが突設され、この支片５４ａの先端と取付板５４にて支持ピン５５の両端が固定支持されている。一方、直動式ダンパー１８の先端部１８ｂには、支持ピン５５に下方から外嵌して係合するＵ字状の係合部材５６が設けられている。係合部材５６の先端部５６ａは上方に向けてハ字状に開き、容易に支持ピン５５に嵌合させることができるようになされている。５６ｂは補強リブである。
【００３７】
このように、圧縮バネ５２を内蔵した直動式ダンパー１８の上部を取付筐体６の上部に突出させれば、取付筐体６をさらにコンパクトな構成とすることができる。その場合、取付筐体６を収納キャビネット１の内側面に取付けるときに、一体的に組み込んだ直動式ダンパー１８の先端部１８ｂを同時に収納キャビネット１の内側面に取付ける必要があるが、本実施形態の構成によれば受金具５３を予め収納キャビネット１の内側面に取付けておけば、係合部材５６を支持ピン５５に嵌合させるだけで簡単に取付けることができ、取付筐体６の取付作業時に不都合を生じることもない。
【００３８】
なお、上記各実施形態ではリンク５ｂと枢支軸１１との連結部に異径部２９と係合孔３０から成る遊び構造を設けたが、枢支軸１１と連動回転板１２との連結部に同様の遊び構造を設けてもよい。
【００３９】
【発明の効果】
本発明の収納部昇降支持装置によれば、以上の説明から明らかなように、オリフィスの流通抵抗により緩衝作用を得る直動式ダンパーと引張又は圧縮バネ体を、枢支軸に連結した連動回転板と取付筐体との間又は連動回転板と収納キャビネット内側面との間に介装しているので、ダンパーの動作特性の温度による影響が小さく、雰囲気温度が変化しても安定した動作特性を得ることができ、またバネ体として引張又は圧縮バネを用いているので大きなバネ荷重を容易に得ることができ、さらに連動回転板との組合せにより収納部の下降運動に伴う回動モーメントの変化に対応するモーメントを容易に得ることができて最適な緩衝特性を実現することができ、さらに取付筐体内に配設した連動回転板と取付筐体との間又は連動回転板と収納キャビネット内側面との間に直動式ダンパーと引張又は圧縮バネ体を配設しているので、取付筐体からリンクに対する連結ピン等が突出せず、外観がすっきりして見栄えが良く、また異物を噛み込んで動作不良を起こす恐れもなく、さらにリンクと連動回転板の相対角度を任意に設定できるので、直動式ダンパーとバネ体のレイアウトを任意に設定でき、取付筐体の設計自由度が高くなる。また、直動式ダンパーとバネ体を一体的に組み合わせた場合、筐体サイズを小さくできるとともに、バネ体の引っかけ構造が不要となって部品点数を削減でき、かつ筐体サイズが小さくなることによって筐体にリンクが擦れる恐れが少なくなり、さらに直動式ダンパーの先端を筐体から突出させて収納キャビネットの内側面に結合することもでき、そうすることにより一層筐体サイズを小さくすることができる。
【００４０】
また、一方のリンクと枢支軸の連結部において、枢支軸に平行係合面を有する異径部を設け、一方のリンクに異径部が一定角度範囲で相対回転可能に嵌入係合するように直径方向両側にハ字状に広がる係合孔を形成すると、収納部が上昇端に位置する状態で上記一定角度範囲でダンパ機能を全く受けずに回動させることができ、ダンパ機能を必要としない上昇端で収納部を軽く動かすことができる。また、枢支軸に異径部を加工し、リンクに係合孔を加工するだけでよく、係合部材と被係合部材等の部品を必要としないので、安価に構成することができる。
【００４１】
また、取付筐体を、収納キャビネットの内側面に取付けた取付基板に装着するように構成し、取付筐体の枢支軸貫通部に第１の軸受を嵌合し、取付基板の枢支軸の軸端に対応する位置に第２の軸受を嵌合することにより、枢支軸を第１と第２軸受にてその両端部を回転自在に支持することができ、十分な強度が得られて安定した動作を長期にわたって確保でき、しかも取付基板に軸受を設けたので、取付筐体側に支持板を固着して取付筐体と支持板にそれぞれ設けた軸受で枢支軸を両端支持する場合に比して取付筐体の構成が簡単になり、安価に構成することができる。
【００４２】
また、収納部の昇降端で一方のリンクが係合するストッパを、取付筐体に固定される固定本体と、固定本体の外周に嵌合される環状の弾性体と、固定本体及び弾性体の外面をほぼ覆うとともに固定本体に一方のリンクの回動方向に移動可能に保持されたカバー板にて構成すると、固定本体、弾性体及びカバー板はそれぞれ単純な部品であるため、生産性良く安価に製造することができてコスト低下を図れ、かつ長期にわたって安定した作用を得ることができる。
【図面の簡単な説明】
【図１】本発明の一実施形態の収納部昇降支持装置を適用した収納キャビネットを示し、（ａ）は全体側面図、（ｂ）は中央部を省略して示した全体正面図である。
【図２】同実施形態の収納部昇降支持装置を示し、（ａ）は図１（ｂ）のＡ−Ａ矢視断面図、（ｂ）は（ａ）のＢ−Ｂ矢視図である。
【図３】同実施形態の収納部昇降支持装置における取付筐体内の構造を示し、図１（ｂ）のＣ−Ｃ矢視拡大断面図である。
【図４】同実施形態の収納部昇降支持装置における取付筐体の分解斜視図である。
【図５】同実施形態の収納部昇降支持装置における取付筐体の装着状態を示す要部の縦断側面図である。
【図６】同実施形態の収納部昇降支持装置の要部の分解斜視図である。
【図７】同実施形態の収納部昇降支持装置の要部の縦断側面図である。
【図８】同実施形態の収納部昇降支持装置のストッパの分解斜視図である。
【図９】同実施形態の収納部昇降支持装置のストッパの縦断面図である。
【図１０】同実施形態の収納部昇降支持装置における取付筐体内の構造の変形例を示す図３と同様の断面図である。
【図１１】本発明の他の実施形態の収納部昇降支持装置における取付筐体内の構造を示す図３と同様の断面図である。
【図１２】本発明の更に別の実施形態の収納部昇降支持装置における取付筐体内の構造を示す図３と同様の断面図である。
【図１３】同実施形態における直動式ダンパーの収納キャビネット内側面に対する結合部の分解斜視図である。
【図１４】従来例の収納部昇降支持装置の要部の構成を示す斜視図である。
【図１５】他の従来例の収納部昇降支持装置におけるストッパの構成を示す縦断側面図である。
【符号の説明】
１収納キャビネット
２収納部
３昇降支持装置
４平行リンク
５ａ前側リンク
５ｂ後側リンク
６取付筐体
９延長部
１０ストッパ
１１枢支軸
１２連動回転板
１５引張バネ（バネ体）
１８直動式ダンパ
２１取付基板
２７軸受（第１の軸受）
２８有底軸受（第２の軸受）
２９異径部
３０係合孔
４０固定本体
４１弾性体
４２カバー体
５２圧縮バネ（バネ体）[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a storage device that stores various items in a kitchen or the like, and more particularly, to a lift support device for a storage unit in a lift storage device that moves a storage unit up and down inside and outside a storage cabinet.
[0002]
[Prior art]
As a storage part raising / lowering support apparatus in this type of conventional storage apparatus, for example, one disclosed in Japanese Patent Application Laid-Open No. 7-148037 is known. 14 will be described with reference to FIG. 14. The mounting base 61 is fixed to the inner surfaces of both sides of the storage cabinet 60 (see FIG. 15), and the parallel links 62 are rotated by the mounting base 61, respectively. The mounting plate 63 is pivotally supported and connected to the free end portions of the parallel links 62, and both side surfaces of a storage portion (not shown) are attached. A mounting plate 64 is fixed to the mounting base 61 with a gap on the back side thereof, and a pivot shaft 66 fixed to one of the links 65a of the parallel link 62 is passed through the mounting base 61 and the mounting plate 64 so as to pass through them. A large gear 67 fixed to a pivot shaft 66 is disposed between the mounting base 61 and the mounting plate 64. A vine spring 68 is disposed on the outer periphery of the end of the pivot shaft 66 protruding to the back side of the mounting plate 64, and one end 68a is engaged with a locking member 69 fixed to the mounting plate 64, while the other end 68b is one side. When the large gear 67 rotates in conjunction with the link 65a, it is configured to engage with a push pin 70 projecting from the large gear 67. It should be noted that the storage portion is set so that the rotation range of an appropriate angle from the rising end where the storage portion is stored in the storage cabinet 60 is a play range where the other end 68b of the vine spring 68 and the push pin 70 are not engaged. Can be moved lightly. A rotary damper 71 is mounted on the back surface of the mounting plate 64, and a pinion 72 fixed to the shaft is meshed with the large gear 67. When the large gear 67 rotates in conjunction with one link 65a, the speed is increased. The damper 71 is configured to rotate.
[0003]
Further, the pivot shaft 73 of the other link 65 b of the parallel links 62 on both sides is rotatably supported by the bearing portion of the mounting base 61 and protrudes from the surface of the mounting base 61. Both end portions are externally fitted and connected and fixed by connecting pins 75 or screws passing therethrough so that the parallel links 62 and 62 on both sides rotate in synchronization.
[0004]
Further, as a means for stopping the storage portion at the lift end position, as shown in FIG. 15, a stopper 76 is provided so that the side edge of one link 65a is engaged with the surface of the mounting base 65 at both rotation ends. A fixed one is known. The stopper 76 has a shock absorber 79 integrally fixed to an upright piece 78 formed on both sides of the body fitting 77, and a pressing plate 80 is integrally fixed to the surface of the shock absorber 79, and damage due to collision of the side edge of the link 65a. Is configured to prevent.
[0005]
[Problems to be solved by the invention]
However, in the configuration of the conventional storage unit lifting / lowering support device, the rotation of the link 65a is increased by the large gear 67 and the pinion 72 in order to effectively exhibit the buffer function by the rotary damper 71. There is a problem that the configuration is complicated and expensive. Further, since the rotary damper 71 is a buffer that mainly uses the viscous resistance of oil, there is a problem that it is easily affected by temperature, and the operating characteristics vary greatly depending on the ambient temperature.
[0006]
In addition, a vine spring 68 disposed on the outer periphery of the pivot shaft 66 is used as an urging means for reducing the load on the storage portion, but it is necessary to sufficiently support a large moment due to the load on the storage portion. To obtain a large torsional moment with a relatively small winding diameter, a large wire diameter is required, which increases the manufacturing equipment and costs. In addition, it accurately responds to changes in moment as the storage part is lowered. It was difficult to obtain a torsional moment, and there was a problem that the buffer function could not be sufficiently exhibited.
[0007]
Further, in the configuration of the stopper 76, for example, an impact absorber 79 to which the pressing plate 80 is integrally fixed is manufactured by in-mold molding or the like, and the impact absorber 79 is bonded to the body fitting 77. As a result, a high cost is required, and there is a problem that adhesion or the like may be peeled off and reliability of maintaining a buffer function when stopping at the lift end is low.
[0008]
In view of the above-described conventional problems, an object of the present invention is to provide a storage unit lifting support device that can be configured at low cost and can stably obtain a sufficient buffering effect.
[0009]
[Means for Solving the Problems]
The storage unit lifting and lowering support device of the present invention pivotally supports a parallel link having a storage unit connected to a free end portion thereof in an attachment housing, and pivots one of the parallel links and rotates in conjunction with the pivot. Projecting into the mounting housing, and Fixed Interlocking rotating plate and mounting housing Between Or With interlocking rotating plate A linear damper is installed between the inner side of the storage cabinet and the inner surface of the storage cabinet so as to suppress the rotational speed of the interlocking rotating plate accompanying the rotation of the parallel link when the storage unit is lowered. Tension or compression The spring body is arranged.
[0010]
As described above, the direct acting damper and the spring body, which obtain a buffering action by the flow resistance of the orifice, are interposed between the interlocking rotating plate connected to the pivot shaft and the inner surface of the mounting housing or the storage cabinet. The impact of the damper on the operating characteristics is small, stable operating characteristics can be obtained even when the ambient temperature changes, and a large spring load can be easily obtained because a tension or compression spring can be used as the spring body. In addition, by combining with the interlocking rotating plate, it is possible to easily obtain the moment corresponding to the change of the rotating moment accompanying the downward movement of the storage part, and to realize the optimum buffering characteristic, and to arrange in the mounting housing. Since the direct acting damper and the spring body are connected to the interlocking rotating plate provided, the direct acting damper and the spring body are connected to the link outside the mounting housing. Compared with the case, the connecting pin to the link does not protrude from the mounting housing, there is no risk of malfunction due to biting in foreign matter, the appearance is clean and looks good, and the link and the interlocking rotating plate are relatively Since the angle can be arbitrarily set, the layout of the direct acting damper and the spring body can be arbitrarily set, and the degree of freedom in designing the mounting housing is increased.
[0011]
The spring body may be built in the direct acting damper or wound around the outer periphery of the direct acting damper and integrated with the direct acting damper. There is an advantage that the size can be reduced and the number of parts can be reduced because the hook structure of the spring body is not required.
[0012]
Also, link between one link and pivot Part Provided with a different-diameter portion having a parallel engagement surface on the pivot shaft. To By forming engagement holes that expand in the shape of a letter on both sides in the diametric direction so that the different diameter portions can be fitted and engaged with each other so as to be relatively rotatable within a certain angular range, the damper within the above certain angular range with the storage portion positioned at the rising end. It can be rotated without receiving any function, and the storage portion can be moved lightly in the vicinity of the rising end that does not require a damper function. In addition, machining the different diameter part on the pivot shaft, To It is only necessary to process the engagement hole, and parts such as the engagement member and the engaged member are not required.
[0013]
Further, the mounting housing is configured to be mounted on a mounting board attached to the inner surface of the storage cabinet, and the first bearing is fitted to the pivot shaft penetrating portion of the mounting housing, and the pivot shaft of the mounting board is fitted. By fitting the second bearing at a position corresponding to the shaft end of the shaft, both ends of the pivot shaft can be rotatably supported by the first and second bearings, and sufficient strength can be obtained. Stable and stable operation over a long period of time, and because the mounting board is provided with a bearing, the support plate is fixed to the mounting housing side, and the pivot shaft is supported at both ends by the bearings provided on the mounting housing and the supporting plate, respectively. Compared to the above, the structure of the mounting housing is simplified and can be constructed at low cost.
[0014]
Also, One link of the parallel link has an extension part that extends further from the pivot shaft, and when the stopper that engages the extension part at the lifting end of the storage part is arranged on the mounting housing, the storage part is securely stopped at the lifting end Can be made. Also, A stopper, a fixed main body fixed to the mounting housing, an annular elastic body fitted to the outer periphery of the fixed main body, substantially covering the outer surface of the fixed main body and the elastic body, and the rotation direction of one link on the fixed main body Since the fixed body, the elastic body and the cover plate are simple parts, they can be manufactured at low cost with good productivity, and the cost can be reduced. A stable action can be obtained.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
[0016]
In FIG. 1, 1 is a storage cabinet installed on the upper wall surface of a kitchen or the like, 2 is a state in which the storage cabinet 1 is housed (indicated by a one-dot chain line), and a state in which the storage cabinet 1 is pulled out to the lower front part (virtual line) It is the storage part mounted | worn so that raising / lowering is possible. The storage unit 2 is configured by, for example, a storage rack provided with both side plates, a plurality of nets, and a handle at the lower front end. Elevating support devices 3 having parallel links 4 are disposed on the inner surfaces of both sides of the storage cabinet 1, and the storage portion 2 is supported by these elevating support devices 3 so as to be movable up and down as described above. The storage unit 2 is located highest at the position where the parallel link 4 is upright as indicated by the solid line, but in order to store the storage unit 2 in a stable state, the storage unit 2 is further rearward by about 10 degrees. It is configured to be completely accommodated in the storage cabinet 1 in the state shown by the rotated one-dot chain line, and in this specification, this position is defined as the rising end of the storage unit 2 and the state indicated by the phantom line is the falling end. It prescribes.
[0017]
As shown in FIG. 2, the elevating support device 3 pivotally supports the base ends of the front link 5a and the rear link 5b constituting the parallel link 4 with a mounting housing 6, and the links 5a, The free end portion 5b is pivotally attached to a connecting plate 7 fixed to both side surfaces of the storage portion 2. The base ends of the front links 5a of the lifting support devices 3 and 3 are coupled to each other by an interlocking connecting shaft 8, and the parallel links 4 and 4 of the lifting support devices 3 and 3 are configured to rotate in synchronization with each other. Has been. Further, the rear link 5b is formed with an extension portion 9 further extending from the base end portion. A rear edge in the vicinity of the base end portion of the rear link 5 b is engaged with the outer surface of the mounting housing 6 at the rising end of the storage portion 2, and a rear edge of the extension portion 9 is formed at the lower end of the storage portion 2. A stopper 10 having a substantially triangular shape as a whole is fixed so as to be engaged, and the elevating end of the storage portion 2 is regulated by the stopper 10.
[0018]
A pivot shaft 11 that pivots on the rear link 5b and rotates in conjunction with the rear link 5b protrudes into the mounting housing 6 and is supported in the mounting housing 6 as shown in FIG. An interlocking rotating plate 12 is fixed to the shaft 11. A tension spring 15 is interposed between a spring hook 13 attached to one end 12 a of the interlocking rotating plate 12 and a spring hooking protrusion 14 provided at the upper front end of the mounting housing 6, and the other end 12 b of the interlocking rotating plate 12. A direct acting damper 18 is interposed between the support pin 16 provided on the support shaft 16 and the support pin 17 provided at the upper rear end of the mounting housing 6. A pivot pin 19 is fixed to the base end portion of the front link 5a, and the pivot pin 19 is rotatably supported by a bearing portion 20 provided in the mounting housing 6.
[0019]
As shown in FIG. 4, the mounting housing 6 is formed of a shallow rectangular box that is open on the inner surface side of the storage cabinet 1, and is configured to be mounted on a mounting substrate 21 that is attached to the inner surface of the storage cabinet 1. Yes. The attachment board 21 is formed so that coupling pieces 22 a and 22 b are raised from the front and rear edges thereof and overlapped with the inner surfaces of the front and rear side walls of the attachment housing 6. A mounting piece 23 is bent from the end edge of the front coupling piece 22b toward the rear side. On the other hand, a U-shaped support plate 24 formed by bending connecting plate portions 25a and 25b overlapping the front and rear side walls of the mounting housing 6 at the front and rear ends at the inner upper end of the mounting housing 6. Is fixed, and the lower end of the support plate 24 abuts on the upper end of the mounting substrate 21 and is supported in the vertical direction. A protrusion 26 is formed at the tip of the upper end of the coupling pieces 22a and 22b of the mounting substrate 21, and a recess having a width wider than that of the protrusion 26 at the lower end of the coupling plate 25a and 25b of the support plate 24. As shown in FIG. 5, the mounting housing 6 is fitted to the distal ends of the coupling pieces 22 a and 22 b of the mounting substrate 21 and lowered as shown by the arrow a, and the coupling plate portion 25 a of the support plate 24. , 25b is configured to attach the mounting housing 6 to the mounting substrate 21 by supporting the lower end of the coupling pieces 22a, 22b in contact with the upper ends of the coupling pieces 22a, 22b and then pushing the mounting housing 6 as indicated by an arrow b. Yes.
[0020]
A part of the coupling plate portion 22a of the support plate 24 is cut and raised to form the spring hooking projection 14. Further, mounting holes 26 a and 26 b are formed in the mounting housing 6 and the support plate 21 at the upper rear end of the support shaft 21 by fitting and engaging both ends of the support pin 17. Further, as shown in FIGS. 6 and 7, a bearing 27 that rotatably supports the pivot shaft 11 is fitted and fixed at a substantially central portion in the front-rear direction of the lower portion of the mounting housing 6. At the corresponding position, the bottomed bearing 28 is fitted and fixed from the back side.
[0021]
6 and 7, the pivot shaft 11 that pivotally supports the rear link 5 b of the parallel link 5 is formed with a different diameter portion 29 having engaging surfaces parallel to each other at the tip portion protruding from the mounting housing 6. In addition, at the connecting portion of the rear link 5b with the pivot shaft 11, a different diameter portion 29 is inserted in the diametrically opposite sides so as to be fitted and engaged so as to be relatively rotatable within a certain angular range (± about 10 degrees). Engagement holes 30 extending in a shape are formed. The positions of the different-diameter portions 29 and the engagement holes 30 in the rotation direction can be freely set without being interlocked with the pivot shaft 11 and the interlocking rotary plate 12 within a range of ± 10 degrees from the rear link 5b in an upright state. The pulling spring 15 and the direct acting damper 18 do not act while the storage unit 2 is set so as to be rotatable and the storage unit 2 is pulled out from the rising end fully stored in the storage cabinet 1 by about 20 degrees. It can be pulled out lightly.
[0022]
Then, the pivot shaft 11 is inserted into the bearing 27 from the inside of the mounting housing 6, and the engaging hole 30 of the rear link 5 b is fitted into the different diameter portion 29 protruding to the outside from the bearing 27, and the washer 31, spring By screwing the mounting screw 33 into the shaft end screw hole 34 of the pivot shaft 11 via the washer 32, the rear link 5b and the pivot shaft 11 to which the interlocking rotary plate 12 is fixed are attached to the mounting housing 6. It is assembled. By pushing the mounting housing 6 toward the inner surface of the storage cabinet 1 in a state where the mounting housing 6 is lowered and supported with respect to the mounting substrate 21 as described above, the distal end portion of the pivot shaft 11 is pushed into the mounting substrate 21. The pivot shaft 11 is fitted to the mounted bottomed bearing 28, and both ends are supported by the bearing 27 and the bottomed bearing 28.
[0023]
Reference numeral 35 denotes a spacer for maintaining a distance between the base end portion 18a of the direct acting damper 18 and the interlocking rotary plate 12. Reference numeral 36 denotes a washer. Reference numeral 37 denotes a retaining snap ring. Reference numerals 38 a and 38 b denote positioning spacers for the front end portion 18 b of the direct acting damper 18. Reference numeral 39 denotes a mounting pin for the spring hook 13 protruding from the one end 12 a of the interlocking rotating plate 12.
[0024]
As shown in FIGS. 8 and 9, the stopper 10 includes a substantially triangular fixed body 40 that is fixed to the mounting housing 6, and an annular elastic body 41 such as butyl rubber that is fitted to the outer periphery of the fixed body 40. The upper surface of the fixed main body 40 and the elastic body 41 and the cover plate 42 having a U-shaped cross-section that substantially covers the rear link 5b and both side surfaces with which the side edges of the extension portion 9 are engaged. A plurality of mounting bosses 43 that are slightly higher than the thickness of the cover plate 42 are projected on the upper surface of the fixed body 40, and mounting holes 44 are formed through the mounting boss 43. A long hole 45 into which 43 is fitted and engaged is formed. The long hole 45 is formed in a long arc shape in the compression direction of the elastic body 41 due to the collision of the link 5b. A plurality of support protrusions 46 project from the lower surface of the fixed main body 40, and the load applied to the fixed main body 40 is smoothly transmitted to the mounting housing 6 by being fitted into and engaged with the receiving holes 47 drilled in the mounting housing 6. It is configured as follows. Reference numeral 48 denotes a mounting bolt, which is inserted into the mounting hole 44 through the spring washer 49 and the washer 50 and screwed into the mounting housing 6 to fix the fixed main body 40 to the mounting housing 6. 42 is prevented from leaving. In FIG. 9, reference numeral 51 denotes a reinforcing plate fixed to the back surface in order to maintain the strength of the mounting housing 6.
[0025]
In the storage unit lifting / lowering support apparatus having the above-described configuration, when the storage unit 2 is pulled out from the storage cabinet 1 to the front lower part, when a handle (not shown) at the lower end of the front end is pulled toward the front, Since the tension spring 15 and the direct acting damper 18 are configured not to operate within a range of about 20 degrees, the storage portion 2 can be pulled out lightly, and then the parallel link 4 rotates forward. Along with this, the storage portion 2 starts to descend at an acceleration due to the rotation moment due to its own weight, but a reverse rotation moment by the interlocking rotation plate 12 and the tension spring 15 acts to cancel the rotation moment, Since the rotational speed is suppressed by the direct acting damper 18, the storage portion 2 slowly descends to the descending end. When the lower end is reached, the side edge of the extension portion 9 of the link 5b collides with the stopper 10 to stop the rotation of the parallel link 4, and the storage portion 2 is stopped and supported at that position. Moreover, since the impact at the time of the collision is buffered by the elastic body 41 via the cover plate 42, an excessive impact load is absorbed.
[0026]
When the storage unit 2 is lowered, the linear motion damper 18 that obtains a buffer action by the flow resistance of the orifice, the tension spring 15 and the interlocking rotary plate 12 connected to the pivot shaft 11 are used in combination. The tensile spring 15 can easily obtain a large spring load and can be easily combined with the interlocking rotating plate 12 so as to obtain stable operating characteristics even if the ambient temperature changes. A moment corresponding to a change in the rotational moment accompanying the downward movement can be easily obtained, and an optimum buffer characteristic can be realized.
[0027]
On the other hand, when the storage unit 2 is raised and stored in the storage cabinet 1, the rotational moment due to the load of the storage unit 2 is offset by the urging force of the tension spring 15, and the direct acting damper 18 is lifted by the one-way mechanism. Since there is almost no resistance at the time, it can be accommodated by raising it relatively lightly. Also at the rising end, the side edge of the link 5b collides with the stopper 10 and is similarly buffered and supported at that position.
[0028]
And according to the structure of this embodiment, since the interlocking rotating plate 12, the tension spring 15, and the linear motion damper 18 are arrange | positioned in the attachment housing | casing 6, the relative angle of the link 5b and the interlocking rotating plate 12 is the same. However, the present invention is not limited to the substantially parallel arrangement as shown in the illustrated example. For example, as shown in FIG. 10, by disposing the interlocking rotary plate 12 with an appropriate inclination with respect to the link 5b, The height dimension of the mounting housing 6 can also be made compact, and the layout of the tension spring 15 and the direct acting damper 18 and the design freedom of the mounting housing 6 are increased.
[0029]
Further, as described above, in order to provide a play in an appropriate angle range between the link 5b and the pivot shaft 11, a different diameter portion 29 is machined in the pivot shaft 11, and the engagement hole 30 is machined in the link 5b. With this configuration, the number of parts can be reduced compared to a configuration in which an engaging member is provided on the pivot shaft 11 and the engaged member is fixed to the link 5b, and the configuration can be made inexpensively.
[0030]
Further, since both ends of the pivot shaft 11 are supported by the bearing 28 attached to the attachment housing 6 and the bottomed bearing 28 attached to the attachment substrate 21, sufficient support strength can be obtained and stable operation can be performed for a long time. In addition, since the bottomed bearing 28 is mounted on the mounting substrate 21 side, there is no need to provide another support plate for mounting the bottomed bearing 28 on the mounting housing 6 side. The configuration becomes simple and can be configured at low cost.
[0031]
Further, the stopper 10 is constituted by a fixed main body 40, an annular elastic body 41 fitted to the outer periphery thereof, and a cover plate 42 which covers the outer surface and is held so as to be movable in the rotation direction of the link 5b. Therefore, each of these parts can be manufactured as simple parts with good productivity and at low cost, and the cost is reduced. Also, since they are not bonded, they are not bonded and can be peeled off even when shocked, and are stable for a long time. The effect can be obtained.
[0032]
Next, a storage unit lifting and lowering support device according to another embodiment of the present invention will be described with reference to FIG. In addition, about the component same as the said embodiment, the same referential mark is attached | subjected and description is abbreviate | omitted and only a different point is demonstrated.
[0033]
In the above-described embodiment, the tension spring 15 is used and the linear motion damper 18 is disposed separately. However, in the present embodiment, the compression spring 52 is used and incorporated in the main body of the linear motion damper 18. Accordingly, it is not necessary to secure a space for arranging the spring body, so that the size of the mounting housing 6 can be reduced. In particular, when the upper portion of the front portion is cut as shown in the drawing, the links 5a and 5b are rotated. There is less risk of rubbing against the mounting housing 6 at times, which is preferable in terms of function and appearance. Further, since the spring body hooking structure is not required, the number of parts can be reduced. Further, by disposing the compression spring 52 in the main body of the direct acting damper 18, it is possible to reduce the cost by eliminating the need for a rust prevention treatment for the spring, and to reduce the cost of the volume integral direct acting damper 18 of the compression spring 52. The amount of oil can also be reduced.
[0034]
Although illustration is omitted, when it is desired to further increase the spring load of the spring body, a compression spring is also wound around the outer periphery of the extension / retraction shaft between the main body of the direct acting damper 18 and the tip end portion 18b. May be.
[0035]
Next, a storage unit lifting and lowering support apparatus according to still another embodiment of the present invention will be described with reference to FIGS. In addition, about the component same as the said embodiment, the same referential mark is attached | subjected and description is abbreviate | omitted and only a different point is demonstrated.
[0036]
In the present embodiment, as shown in FIG. 12, the front end 18 b of the linear motion type damper 18 incorporating the compression spring 52 is made to protrude outside through the upper wall of the mounting housing 6, and the inner surface of the storage cabinet 1. Are engaged with and connected to a receiving metal fitting 53 attached thereto. As shown in FIG. 13, a support piece 54 a is projected from the center of the upper edge of the mounting plate 54 in an inverted L shape, and the support pin 55 is attached to the tip of the support piece 54 a and the mounting plate 54. Both ends are fixedly supported. On the other hand, a U-shaped engagement member 56 is provided at the distal end portion 18b of the direct acting damper 18 so as to be externally fitted to the support pin 55 from below. The front end portion 56a of the engaging member 56 opens in a C shape upward, and can be easily fitted to the support pin 55. Reference numeral 56b denotes a reinforcing rib.
[0037]
Thus, if the upper part of the linear motion type damper 18 incorporating the compression spring 52 is protruded from the upper part of the mounting housing 6, the mounting housing 6 can be made more compact. In that case, when attaching the mounting housing 6 to the inner surface of the storage cabinet 1, it is necessary to attach the tip 18b of the integrated direct acting damper 18 to the inner surface of the storage cabinet 1 at the same time. According to the configuration of the embodiment, if the receiving metal fitting 53 is attached to the inner surface of the storage cabinet 1 in advance, it can be easily attached simply by fitting the engaging member 56 to the support pin 55, and the attachment housing 6 is attached. There is no inconvenience during work.
[0038]
In each of the above embodiments, a play structure including the different diameter portion 29 and the engagement hole 30 is provided in the connection portion between the link 5b and the pivot shaft 11, but the connection portion between the pivot shaft 11 and the interlocking rotating plate 12 is provided. A similar play structure may be provided.
[0039]
【The invention's effect】
According to the storage unit lifting / lowering support device of the present invention, as is apparent from the above description, the linear motion type damper that obtains a buffer action by the flow resistance of the orifice, and Tension or compression Interlocking rotating plate with spring body connected to pivot shaft and mounting housing Between Or With interlocking rotating plate Since it is interposed between the inner side of the storage cabinet, the influence of the damper's operating characteristics on the temperature is small, stable operating characteristics can be obtained even if the ambient temperature changes, and tension or compression as a spring body Using a spring ing As a result, a large spring load can be easily obtained, and in addition to the interlocking rotating plate, a moment corresponding to the change in the rotating moment accompanying the downward movement of the storage part can be easily obtained, realizing the optimum buffering characteristics. In addition, the interlocking rotating plate and the mounting housing arranged in the mounting housing Between Or With interlocking rotating plate Direct acting damper between the inner side of the storage cabinet and Tension or compression Since the spring body is arranged, the connecting pin etc. to the link does not protrude from the mounting housing, the appearance is clean and looks good, and there is no risk of malfunction caused by biting in foreign objects. Since the relative angle of the interlocking rotating plate can be arbitrarily set, the layout of the direct acting damper and the spring body can be arbitrarily set, and the degree of freedom in designing the mounting housing is increased. In addition, when the linear motion damper and the spring body are combined together, the housing size can be reduced, and the hook structure of the spring body can be eliminated, reducing the number of parts and reducing the housing size. There is less risk of the link rubbing against the housing, and the tip of the direct acting damper can be projected from the housing and joined to the inner surface of the storage cabinet, thereby further reducing the housing size. it can.
[0040]
Also, link between one link and pivot Part Provided with a different-diameter portion having a parallel engagement surface on the pivot shaft. To By forming engagement holes that expand in a square shape on both sides in the diametrical direction so that the different diameter portions can be fitted and engaged with each other so as to be relatively rotatable within a certain angular range, the damper is formed within the certain angular range with the storage portion positioned at the rising end. It can be rotated without any function, and the storage portion can be moved lightly at the rising end that does not require a damper function. In addition, machining the different diameter part on the pivot shaft, To It is only necessary to process the engagement hole, and parts such as the engagement member and the engaged member are not required.
[0041]
Further, the mounting housing is configured to be mounted on a mounting board attached to the inner surface of the storage cabinet, and the first bearing is fitted to the pivot shaft penetrating portion of the mounting housing, and the pivot shaft of the mounting board is fitted. By fitting the second bearing at a position corresponding to the shaft end of the shaft, both ends of the pivot shaft can be rotatably supported by the first and second bearings, and sufficient strength can be obtained. Stable and stable operation over a long period of time, and because the mounting board is provided with a bearing, the support plate is fixed to the mounting housing side, and the pivot shaft is supported at both ends by the bearings provided on the mounting housing and the supporting plate, respectively. Compared to the above, the structure of the mounting housing is simplified and can be constructed at low cost.
[0042]
In addition, a stopper with which one link engages at the raising / lowering end of the storage section, a fixed main body fixed to the mounting housing, an annular elastic body fitted to the outer periphery of the fixed main body, a fixed main body and an elastic body If the cover plate is covered with the fixed body so that it can be moved in the direction of rotation of one link, the fixed body, elastic body, and cover plate are simple parts. Thus, the cost can be reduced and a stable action can be obtained over a long period of time.
[Brief description of the drawings]
FIGS. 1A and 1B show a storage cabinet to which a storage unit lifting and lowering support device according to an embodiment of the present invention is applied, wherein FIG. 1A is an overall side view, and FIG.
2A and 2B show the storage unit lifting support device of the embodiment, wherein FIG. 2A is a cross-sectional view taken along the line AA in FIG. 1B, and FIG. .
FIG. 3 is an enlarged cross-sectional view taken along the line CC of FIG.
FIG. 4 is an exploded perspective view of an attachment housing in the storage unit lifting / lowering support device according to the embodiment;
FIG. 5 is a longitudinal side view of a main part showing a mounting state of the mounting housing in the storage unit lifting / lowering support device of the same embodiment;
FIG. 6 is an exploded perspective view of a main part of the storage unit lifting / lowering support device of the embodiment.
FIG. 7 is a longitudinal side view of a main part of the storage unit lifting support device of the same embodiment.
FIG. 8 is an exploded perspective view of a stopper of the storage unit lifting support device of the same embodiment.
FIG. 9 is a longitudinal sectional view of a stopper of the storage unit lifting support device of the same embodiment.
10 is a cross-sectional view similar to FIG. 3, showing a modified example of the structure inside the mounting housing in the storage unit lifting / lowering support device of the same embodiment; FIG.
11 is a cross-sectional view similar to FIG. 3, showing the structure inside the mounting housing in the storage unit lifting / lowering support device of another embodiment of the present invention.
12 is a cross-sectional view similar to FIG. 3, showing the structure inside the mounting housing in the storage unit lifting / lowering support device of still another embodiment of the present invention.
FIG. 13 is an exploded perspective view of a coupling portion with respect to the inner side surface of the storage cabinet of the direct acting damper according to the embodiment.
FIG. 14 is a perspective view showing a configuration of a main part of a conventional storage unit lifting / lowering support device.
FIG. 15 is a longitudinal sectional side view showing a configuration of a stopper in a storage unit lifting / lowering support device of another conventional example.
[Explanation of symbols]
1 Storage cabinet
2 storage
3 Lifting support device
4 parallel links
5a Front link
5b Rear link
6 Mounting housing
9 Extension
10 Stopper
11 pivots
12 Interlocking rotating plate
15 Tension spring (spring body)
18 Direct acting damper
21 Mounting board
27 Bearing (first bearing)
28 Bottomed bearing (second bearing)
29 Different diameter part
30 engagement hole
40 Fixed body
41 Elastic body
42 Cover body
52 Compression spring (spring body)

Claims

収納部を収納キャビネットの内外で昇降可能に設置した昇降式収納装置における収納部の昇降支持装置であって、遊端部に収納部を連結した平行リンクを取付筐体にて枢支し、平行リンクの一方のリンクを枢支するとともに連動して回転する枢支軸を取付筐体内に突出させて取付筐体内で連動回転板を固定し、連動回転板と取付筐体との間に、収納部下降時の平行リンクの回動に伴う連動回転板の回動速度を抑制するように直動式ダンパーと引張又は圧縮バネ体を配設したことを特徴とする収納部昇降支持装置。Elevating and lowering support device for the elevating type storage device in which the storage unit can be moved up and down inside and outside the storage cabinet. A parallel link connecting the storage unit to the free end is pivotally supported by the mounting housing, and in parallel One of the links is pivotally supported and the pivot shaft that rotates in conjunction with the link is projected into the mounting housing to fix the interlocking rotating plate in the mounting housing , and is stored between the interlocking rotating plate and the mounting housing. A storage unit lifting / lowering support device, wherein a linear motion type damper and a tension or compression spring body are arranged so as to suppress the rotation speed of the interlocking rotating plate accompanying the rotation of the parallel link when the unit is lowered.

収納部を収納キャビネットの内外で昇降可能に設置した昇降式収納装置における収納部の昇降支持装置であって、遊端部に収納部を連結した平行リンクを取付筐体にて枢支し、平行リンクの一方のリンクを枢支するとともに連動して回転する枢支軸を取付筐体内に突出させて取付筐体内で連動回転板を固定し、連動回転板と収納キャビネット内側面との間に、収納部下降時の平行リンクの回動に伴う連動回転板の回動速度を抑制するように直動式ダンパーと引張又は圧縮バネ体を配設したことを特徴とする収納部昇降支持装置。Elevating and lowering support device for the elevating type storage device in which the storage unit can be moved up and down inside and outside the storage cabinet. A parallel link connecting the storage unit to the free end is pivotally supported by the mounting housing, and in parallel While pivoting one link of the link and projecting a pivot shaft that rotates in conjunction with the link, the interlocking rotating plate is fixed in the mounting housing, and between the interlocking rotating plate and the inner surface of the storage cabinet, A storage unit lifting / lowering support device, wherein a linear motion damper and a tension or compression spring body are disposed so as to suppress the rotation speed of the interlocking rotating plate accompanying the rotation of the parallel link when the storage unit is lowered.

一方のリンクと枢支軸の連結部において、枢支軸に平行係合面を有する異径部を設け、一方のリンクに異径部が一定角度範囲で相対回転可能に嵌入係合するように直径方向両側にハ字状に広がる係合孔を形成したことを特徴とする請求項１又は２記載の収納部昇降支持装置。Oite the connecting portion of the one link and pivot shaft, a different-diameter portion is provided with parallel engagement surfaces on the pivot shaft, rotatable relative fitted engagement different diameter to one link at a constant angle range 3. The storage unit lifting and lowering support device according to claim 1, wherein engagement holes extending in a letter C shape are formed on both sides in the diameter direction.

取付筐体を、収納キャビネットの内側面に取付けた取付基板に装着するように構成し、取付筐体の枢支軸貫通部に第１の軸受を嵌合し、取付基板の枢支軸の軸端に対応する位置に第２の軸受を嵌合し、枢支軸を第１と第２軸受にてその両端部を回転自在に支持したことを特徴とする請求項１又は２記載の収納部昇降支持装置。The mounting housing is configured to be mounted on a mounting board attached to the inner surface of the storage cabinet, the first bearing is fitted to the pivot shaft penetrating portion of the mounting housing, and the pivot shaft of the mounting board is fitted. The storage portion according to claim 1 or 2 , wherein the second bearing is fitted at a position corresponding to the end, and both ends of the pivot shaft are rotatably supported by the first and second bearings. Elevating support device.

平行リンクの一方のリンクは枢支軸からさらに延長した延長部を備え、収納部の昇降端で延長部が係合するストッパを取付筐体に配設したことを特徴とする請求項１〜４の何れかに記載の収納部昇降支持装置。One of the parallel links is provided with an extension portion further extended from the pivot shaft, and a stopper with which the extension portion engages at the elevating end of the storage portion is disposed in the mounting housing. The storage part raising / lowering support apparatus in any one of.

収納部を収納キャビネットの内外で昇降可能に設置した昇降式収納装置における収納部の昇降支持装置において、遊端部に収納部を連結した平行リンクを取付筐体にて枢支し、平行リンクの一方のリンクは枢支軸からさらに延長し、取付筐体に収納部の昇降端で一方のリンクが係合するストッパを配設し、このストッパを、取付筐体に固定される固定本体と、固定本体の外周に嵌合される環状の弾性体と、固定本体及び弾性体の外面をほぼ覆うとともに固定本体に一方のリンクの回動方向に移動可能に保持されたカバー板にて構成したことを特徴とする収納部昇降支持装置。 In the lifting support device of the storage unit in the lifting type storage device installed so that the storage unit can be moved up and down inside and outside of the storage cabinet, a parallel link connecting the storage unit to the free end is pivotally supported by the mounting housing, One link is further extended from the pivot shaft, and a stopper that engages one link at the lifting end of the storage portion is disposed on the mounting housing, and the stopper is fixed to the mounting housing; An annular elastic body fitted to the outer periphery of the fixed body, and a cover plate that substantially covers the outer surface of the fixed body and the elastic body and is held by the fixed body so as to be movable in the rotation direction of one link. A lifting and lowering support device for a storage section.